New Yorkers have reacted with fury to a new etiquette guide – including 25 per cent at restaurants and 20 per cent at coffee shops, coffee carts and even bodegas.  The 140 etiquette rules, steroids for sale UK published in New York Magazine’s  – which infamously  – are intended as a guide on how to deal ‘politely’ with social situations.  The magazine asks readers ‘Do you know how to behave?Are you sure?’ – with sections covering friends and lovers, strangers, going out and staying in, tipping, work, the City, parenting and texting. The rules were put together by asking people about situations that typically put them on edge – and as…